Abstract
BackgroundDespite advances in behavioral science, there is no widely shared understanding of the “mechanisms of action” (MoAs) through which individual behavior change techniques (BCTs) have their effects. Cumulative progress in the development, evaluation, and synthesis of behavioral interventions could be improved by identifying the MoAs through which BCTs are believed to bring about change.PurposeThis study aimed to identify the links between BCTs and MoAs described by authors of a corpus of published literature.MethodsHypothesized links between BCTs and MoAs were extracted by two coders from 277 behavior change intervention articles. Binomial tests were conducted to provide an indication of the relative frequency of each link.ResultsOf 77 BCTs coded, 70 were linked to at least one MoA. Of 26 MoAs, all but one were linked to at least one BCT. We identified 2,636 BCT–MoA links in total (mean number of links per article = 9.56, SD = 13.80). The most frequently linked MoAs were “Beliefs about Capabilities” and “Intention.” Binomial test results identified up to five MoAs linked to each of the BCTs (M = 1.71, range: 1–5) and up to eight BCTs for each of the MoAs (M = 3.63, range: 1–8).ConclusionsThe BCT–MoA links described by intervention authors and identified in this extensive review present intervention developers and reviewers with a first level of systematically collated evidence. These findings provide a resource for the development of theory-based interventions, and for theoretical understanding of intervention evaluations. The extent to which these links are empirically supported requires systematic investigation.
Highlights
Hypothesized links between behavior change techniques (BCTs) and MoAs were extracted by two coders from 277 behavior change intervention articles
Findings from this study represent the first dataset summarizing hypothesized links between BCTs and MoAs that were frequently described by authors of published interventions
We identified 2,636 BCT–MoA links between 70 BCTs and 25 MoAs
Summary
This study aimed to identify the links between BCTs and MoAs described by authors of a corpus of published literature.
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